UBSAN: signed-integer-overflow in ip_idents_reserve ================================================================================ UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11 -2023138386 + -154930474 cannot be represented in type 'int' CPU: 0 PID: 5695 Comm: syz-executor Not tainted syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack+0xfd/0x16e lib/dump_stack.c:118 ubsan_epilogue+0xa/0x30 lib/ubsan.c:148 handle_overflow+0x192/0x1b0 lib/ubsan.c:180 arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline] atomic_add_return include/asm-generic/atomic-instrumented.h:73 [inline] ip_idents_reserve+0x14a/0x170 net/ipv4/route.c:521 __ip_select_ident+0xe4/0x1c0 net/ipv4/route.c:538 iptunnel_xmit+0x468/0x850 net/ipv4/ip_tunnel_core.c:80 udp_tunnel_xmit_skb+0x1ba/0x290 net/ipv4/udp_tunnel_core.c:190 geneve_xmit_skb drivers/net/geneve.c:1004 [inline] geneve_xmit+0x1d03/0x2130 drivers/net/geneve.c:1117 __netdev_start_xmit include/linux/netdevice.h:4824 [inline] netdev_start_xmit include/linux/netdevice.h:4838 [inline] xmit_one net/core/dev.c:3601 [inline] dev_hard_start_xmit+0x2a8/0x7f0 net/core/dev.c:3617 __dev_queue_xmit+0x1690/0x2970 net/core/dev.c:4203 neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0x101e/0x1490 net/ipv6/ip6_output.c:130 NF_HOOK+0x45/0x2c0 include/linux/netfilter.h:297 mld_sendpack+0x5f7/0xa60 net/ipv6/mcast.c:1676 mld_send_cr net/ipv6/mcast.c:1972 [inline] mld_ifc_timer_expire+0x7e1/0x990 net/ipv6/mcast.c:2471 call_timer_fn+0x103/0x490 kernel/time/timer.c:1444 expire_timers kernel/time/timer.c:1489 [inline] __run_timers+0x5d8/0x7a0 kernel/time/timer.c:1783 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1796 __do_softirq+0x267/0x92e kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x9b/0xe0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu+0x227/0x230 kernel/softirq.c:423 irq_exit_rcu+0x5/0x20 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0xea/0x100 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:stack_trace_consume_entry+0x7/0x270 kernel/stacktrace.c:82 Code: 00 00 48 3b 4c 24 18 75 09 48 83 c4 20 e9 91 6c df 07 e8 1c 54 9d 07 66 66 2e 0f 1f 84 00 00 00 00 00 90 55 41 57 41 56 41 55 <41> 54 53 48 83 ec 18 48 ba 00 00 00 00 00 fc ff df 4c 8d 47 10 4c RSP: 0018:ffffc90008aaebf8 EFLAGS: 00000286 RAX: ffffffff8783c2d8 RBX: ffffc90008aaecb8 RCX: 0a3c4b9e92682801 RDX: ffffc90008aaec01 RSI: ffffffff8783c2d8 RDI: ffffc90008aaecb8 RBP: ffffc90008aaeca8 R08: dffffc0000000000 R09: ffffc90008aaec70 R10: fffff52001155d90 R11: ffffffff81611e60 R12: ffff88801e074380 R13: ffffed100845e940 R14: ffffffff81611e60 R15: ffffc90008aaec20 arch_stack_walk+0x108/0x150 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x42/0x70 kernel/stacktrace.c:121 kasan_save_stack mm/kasan/common.c:48 [inline] kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc+0x106/0x140 mm/kasan/common.c:461 slab_post_alloc_hook+0x3a/0x300 mm/slab.h:529 slab_alloc_node mm/slub.c:2901 [inline] slab_alloc mm/slub.c:2909 [inline] kmem_cache_alloc+0x191/0x320 mm/slub.c:2914 sock_alloc_inode+0x17/0xb0 net/socket.c:253 alloc_inode fs/inode.c:233 [inline] new_inode_pseudo+0x63/0x220 fs/inode.c:968 sock_alloc net/socket.c:573 [inline] __sock_create+0x129/0x900 net/socket.c:1399 udp_sock_create6+0x67/0x540 net/ipv6/ip6_udp_tunnel.c:23 udp_sock_create include/net/udp_tunnel.h:62 [inline] wg_socket_init+0x54c/0x930 drivers/net/wireguard/socket.c:398 wg_open+0x24b/0x420 drivers/net/wireguard/device.c:50 __dev_open+0x252/0x400 net/core/dev.c:1535 __dev_change_flags+0x20a/0x6e0 net/core/dev.c:8527 dev_change_flags+0x82/0x1a0 net/core/dev.c:8598 do_setlink+0xae5/0x39b0 net/core/rtnetlink.c:2732 __rtnl_newlink net/core/rtnetlink.c:3410 [inline] rtnl_newlink+0x1190/0x1520 net/core/rtnetlink.c:3530 rtnetlink_rcv_msg+0x9a1/0xe10 net/core/rtnetlink.c:5610 netlink_rcv_skb+0x185/0x390 net/netlink/af_netlink.c:2503 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x7b7/0x9b0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x968/0xb50 net/netlink/af_netlink.c:1914 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x15e/0x170 net/socket.c:663 __sys_sendto+0x323/0x430 net/socket.c:2005 __do_sys_sendto net/socket.c:2017 [inline] __se_sys_sendto net/socket.c:2013 [inline] __x64_sys_sendto+0xda/0xf0 net/socket.c:2013 do_syscall_64+0x32/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f23b2f027bc Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b RSP: 002b:00007ffc654628e0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f23b3c56620 RCX: 00007f23b2f027bc RDX: 0000000000000020 RSI: 00007f23b3c56670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffc65462934 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f23b3c56670 R15: 0000000000000000 ================================================================================ ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 48 3b 4c 24 18 cmp 0x18(%rsp),%rcx 7: 75 09 jne 0x12 9: 48 83 c4 20 add $0x20,%rsp d: e9 91 6c df 07 jmp 0x7df6ca3 12: e8 1c 54 9d 07 call 0x79d5433 17: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 1e: 00 00 00 00 22: 90 nop 23: 55 push %rbp 24: 41 57 push %r15 26: 41 56 push %r14 28: 41 55 push %r13 * 2a: 41 54 push %r12 <-- trapping instruction 2c: 53 push %rbx 2d: 48 83 ec 18 sub $0x18,%rsp 31: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 38: fc ff df 3b: 4c 8d 47 10 lea 0x10(%rdi),%r8 3f: 4c rex.WR Warning: Permanently added '[localhost]:58069' (ED25519) to the list of known hosts. 2025/10/24 07:48:54 parsed 1 programs [ 61.698638][ T5528] cgroup: Unknown subsys name 'net' [ 61.762101][ T5528] cgroup: Unknown subsys name 'rlimit' [ 63.650298][ T5528] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 64.626992][ T5535] IPVS: ftp: loaded support on port[0] = 21 [ 64.737119][ T5535] chnl_net:caif_netlink_parms(): no params data found [ 64.788674][ T5535] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.795146][ T5535] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.803242][ T5535] device bridge_slave_0 entered promiscuous mode [ 64.809888][ T5535] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.816511][ T5535] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.823052][ T5535] device bridge_slave_1 entered promiscuous mode [ 64.839722][ T5535] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.849051][ T5535] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.863694][ T5535] team0: Port device team_slave_0 added [ 64.869727][ T5535] team0: Port device team_slave_1 added [ 64.881800][ T5535] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.887891][ T5535] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 64.908716][ T5535] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.918816][ T5535] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.924649][ T5535] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 64.951781][ T5535] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.974531][ T5535] device hsr_slave_0 entered promiscuous mode [ 64.981745][ T5535] device hsr_slave_1 entered promiscuous mode [ 65.042390][ T5535] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.050250][ T5535] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.057238][ T5535] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.064174][ T5535] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.079057][ T5535] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.084629][ T5535] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.090556][ T5535] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.095968][ T5535] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.117737][ T5535] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.125503][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.135218][ T18] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.141825][ T18] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.147830][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.156888][ T5535] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.165521][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.175166][ T18] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.181338][ T18] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.199298][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.207372][ T18] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.213278][ T18] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.220646][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.232599][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.241486][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.256630][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.268239][ T5535] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.278681][ T5535] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.285436][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.342864][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.350249][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.361101][ T5535] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.374064][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.388116][ T5535] device veth0_vlan entered promiscuous mode [ 65.394173][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.402293][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.409392][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.419263][ T5535] device veth1_vlan entered promiscuous mode [ 65.424982][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.439769][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.446887][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.456060][ T5535] device veth0_macvtap entered promiscuous mode [ 65.466086][ T5535] device veth1_macvtap entered promiscuous mode [ 65.479272][ T5535] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.485063][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.493846][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.505591][ T5535] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.513876][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.526463][ T5535] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.535020][ T5535] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.543099][ T5535] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.550548][ T5535] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.632686][ T3029] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.649406][ T5535] syz-executor (5535) used greatest stack depth: 23600 bytes left [ 65.662498][ T5553] IPVS: ftp: loaded support on port[0] = 21 [ 65.700765][ T3029] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.751313][ T3029] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.790792][ T3029] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.820179][ T5558] IPVS: ftp: loaded support on port[0] = 21 [ 66.032661][ T5569] IPVS: ftp: loaded support on port[0] = 21 [ 66.210073][ T3029] device hsr_slave_0 left promiscuous mode [ 66.219579][ T3029] device hsr_slave_1 left promiscuous mode [ 66.226165][ T5579] IPVS: ftp: loaded support on port[0] = 21 [ 66.236942][ T3029] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.252051][ T3029] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.269294][ T3029] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.275405][ T3029] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.297386][ T3029] device bridge_slave_1 left promiscuous mode [ 66.317894][ T3029] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.325165][ T3029] device bridge_slave_0 left promiscuous mode [ 66.330451][ T3029] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.339217][ T3029] device veth1_macvtap left promiscuous mode [ 66.344113][ T3029] device veth0_macvtap left promiscuous mode [ 66.349728][ T3029] device veth1_vlan left promiscuous mode [ 66.354351][ T3029] device veth0_vlan left promiscuous mode [ 66.417634][ T3029] team0 (unregistering): Port device team_slave_1 removed [ 66.429134][ T3029] team0 (unregistering): Port device team_slave_0 removed [ 66.437120][ T3029] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 66.446666][ T3029] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 66.475146][ T3029] bond0 (unregistering): Released all slaves [ 66.637281][ T5591] IPVS: ftp: loaded support on port[0] = 21 [ 66.768693][ T3027] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.775488][ T3027] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.795231][ T18] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.805093][ T3026] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.813095][ T18] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.833766][ T3026] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.113104][ T5611] IPVS: ftp: loaded support on port[0] = 21 [ 67.566517][ T5633] IPVS: ftp: loaded support on port[0] = 21 [ 67.772055][ T5643] IPVS: ftp: loaded support on port[0] = 21 [ 67.967469][ T5652] IPVS: ftp: loaded support on port[0] = 21 [ 68.111694][ T5661] IPVS: ftp: loaded support on port[0] = 21 [ 68.347580][ T5675] IPVS: ftp: loaded support on port[0] = 21 [ 68.493205][ T5681] IPVS: ftp: loaded support on port[0] = 21 [ 68.604089][ T5686] IPVS: ftp: loaded support on port[0] = 21 [ 68.705899][ T5691] IPVS: ftp: loaded support on port[0] = 21 2025/10/24 07:49:03 executed programs: 0 [ 68.927321][ T5695] IPVS: ftp: loaded support on port[0] = 21 [ 68.988911][ T5695] chnl_net:caif_netlink_parms(): no params data found [ 69.022352][ T5695] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.031467][ T5695] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.040988][ T5695] device bridge_slave_0 entered promiscuous mode [ 69.053816][ T5695] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.059588][ T5695] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.065748][ T5695] device bridge_slave_1 entered promiscuous mode [ 69.083493][ T5695] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.092495][ T5695] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.106531][ T5695] team0: Port device team_slave_0 added [ 69.115780][ T5695] team0: Port device team_slave_1 added [ 69.127216][ T5695] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.133884][ T5695] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 69.156589][ T5695] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.169128][ T5695] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.175040][ T5695] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 69.196956][ T5695] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.220568][ T5695] device hsr_slave_0 entered promiscuous mode [ 69.226801][ T5695] device hsr_slave_1 entered promiscuous mode [ 69.288936][ T5695] lapbether: lapb_disconnect_request err: 4 [ 69.349692][ T5695] lapbether: lapb_disconnect_request err: 4 [ 69.409875][ T5695] lapbether: lapb_disconnect_request err: 4 [ 69.469801][ T5695] lapbether: lapb_disconnect_request err: 4 [ 69.574629][ T5695] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.593056][ T5695] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.611512][ T5695] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.625763][ T5695] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.680524][ T5695] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.687005][ T5695] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.693434][ T5695] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.699465][ T5695] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.762486][ T5695] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.789486][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.807493][ T3029] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.829695][ T3029] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.841260][ T5695] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.857320][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.870608][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.888597][ T3029] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.894439][ T3029] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.929037][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.950606][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.957650][ T3029] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.963362][ T3029] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.971761][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.979111][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.985996][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.993840][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.001177][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.008165][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.015815][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.023853][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.031198][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.038085][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.046606][ T5695] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.055083][ T3029] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.139081][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.145102][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.172099][ T5695] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.210293][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.224047][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.253784][ T5695] device veth0_vlan entered promiscuous mode [ 70.270232][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.290177][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.300879][ T5695] device veth1_vlan entered promiscuous mode [ 70.319520][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.326175][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.337212][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.357660][ T5695] device veth0_macvtap entered promiscuous mode [ 70.380312][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.399276][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 70.421730][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.431314][ T5695] device veth1_macvtap entered promiscuous mode [ 70.439830][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.446936][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 70.457865][ T5695] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.475794][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.488058][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.510595][ T5695] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.517874][ T5695] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.539212][ T5695] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.546598][ T5695] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.571366][ T5695] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.591481][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.600070][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.618629][ C0] ================================================================================ [ 70.626324][ C0] UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11 [ 70.633678][ C0] -2023138386 + -154930474 cannot be represented in type 'int' [ 70.641557][ C0] CPU: 0 PID: 5695 Comm: syz-executor Not tainted syzkaller #0 [ 70.647958][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 70.657077][ C0] Call Trace: [ 70.659868][ C0] [ 70.662354][ C0] dump_stack+0xfd/0x16e [ 70.665615][ C0] ubsan_epilogue+0xa/0x30 [ 70.669492][ C0] handle_overflow+0x192/0x1b0 [ 70.673834][ C0] ip_idents_reserve+0x14a/0x170 [ 70.677971][ C0] __ip_select_ident+0xe4/0x1c0 [ 70.682032][ C0] iptunnel_xmit+0x468/0x850 [ 70.685703][ C0] udp_tunnel_xmit_skb+0x1ba/0x290 [ 70.689818][ C0] geneve_xmit+0x1d03/0x2130 [ 70.693710][ C0] dev_hard_start_xmit+0x2a8/0x7f0 [ 70.698715][ C0] __dev_queue_xmit+0x1690/0x2970 [ 70.703892][ C0] ip6_finish_output2+0x101e/0x1490 [ 70.708531][ C0] NF_HOOK+0x45/0x2c0 [ 70.711918][ C0] ? NF_HOOK+0x2c0/0x2c0 [ 70.716094][ C0] mld_sendpack+0x5f7/0xa60 [ 70.720715][ C0] mld_ifc_timer_expire+0x7e1/0x990 [ 70.725520][ C0] ? lock_acquire+0x78/0x330 [ 70.729439][ C0] ? lock_release+0x69/0x640 [ 70.733109][ C0] ? mld_gq_timer_expire+0xe0/0xe0 [ 70.737309][ C0] call_timer_fn+0x103/0x490 [ 70.741116][ C0] ? mld_gq_timer_expire+0xe0/0xe0 [ 70.745417][ C0] __run_timers+0x5d8/0x7a0 [ 70.749150][ C0] run_timer_softirq+0x63/0xf0 [ 70.753090][ C0] __do_softirq+0x267/0x92e [ 70.756912][ C0] ? asm_call_irq_on_stack+0xf/0x20 [ 70.761300][ C0] asm_call_irq_on_stack+0xf/0x20 [ 70.765508][ C0] [ 70.768021][ C0] do_softirq_own_stack+0x9b/0xe0 [ 70.772262][ C0] __irq_exit_rcu+0x227/0x230 [ 70.776219][ C0] irq_exit_rcu+0x5/0x20 [ 70.779856][ C0] sysvec_apic_timer_interrupt+0xea/0x100 [ 70.784685][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 70.789715][ C0] RIP: 0010:stack_trace_consume_entry+0x7/0x270 [ 70.794981][ C0] Code: 00 00 48 3b 4c 24 18 75 09 48 83 c4 20 e9 91 6c df 07 e8 1c 54 9d 07 66 66 2e 0f 1f 84 00 00 00 00 00 90 55 41 57 41 56 41 55 <41> 54 53 48 83 ec 18 48 ba 00 00 00 00 00 fc ff df 4c 8d 47 10 4c [ 70.811230][ C0] RSP: 0018:ffffc90008aaebf8 EFLAGS: 00000286 [ 70.816207][ C0] RAX: ffffffff8783c2d8 RBX: ffffc90008aaecb8 RCX: 0a3c4b9e92682801 [ 70.822997][ C0] RDX: ffffc90008aaec01 RSI: ffffffff8783c2d8 RDI: ffffc90008aaecb8 [ 70.829521][ C0] RBP: ffffc90008aaeca8 R08: dffffc0000000000 R09: ffffc90008aaec70 [ 70.836273][ C0] R10: fffff52001155d90 R11: ffffffff81611e60 R12: ffff88801e074380 [ 70.842663][ C0] R13: ffffed100845e940 R14: ffffffff81611e60 R15: ffffc90008aaec20 [ 70.849238][ C0] ? stack_trace_save+0x70/0x70 [ 70.853302][ C0] ? stack_trace_save+0x70/0x70 [ 70.857803][ C0] ? netlink_sendmsg+0x968/0xb50 [ 70.862160][ C0] ? netlink_sendmsg+0x968/0xb50 [ 70.866318][ C0] ? stack_trace_save+0x70/0x70 [ 70.870275][ C0] arch_stack_walk+0x108/0x150 [ 70.874159][ C0] ? netlink_sendmsg+0x968/0xb50 [ 70.878299][ C0] stack_trace_save+0x42/0x70 [ 70.882222][ C0] __kasan_kmalloc+0x106/0x140 [ 70.886079][ C0] ? __kasan_kmalloc+0x106/0x140 [ 70.890422][ C0] ? slab_post_alloc_hook+0x3a/0x300 [ 70.894745][ C0] ? kmem_cache_alloc+0x191/0x320 [ 70.898992][ C0] ? sock_alloc_inode+0x17/0xb0 [ 70.902979][ C0] ? new_inode_pseudo+0x63/0x220 [ 70.907118][ C0] ? __sock_create+0x129/0x900 [ 70.911167][ C0] ? udp_sock_create6+0x67/0x540 [ 70.915347][ C0] ? wg_socket_init+0x54c/0x930 [ 70.919407][ C0] ? wg_open+0x24b/0x420 [ 70.922829][ C0] ? __dev_open+0x252/0x400 [ 70.926556][ C0] ? __dev_change_flags+0x20a/0x6e0 [ 70.931039][ C0] ? dev_change_flags+0x82/0x1a0 [ 70.935120][ C0] ? do_setlink+0xae5/0x39b0 [ 70.939142][ C0] ? rtnl_newlink+0x1190/0x1520 [ 70.943548][ C0] ? rtnetlink_rcv_msg+0x9a1/0xe10 [ 70.948216][ C0] ? netlink_rcv_skb+0x185/0x390 [ 70.952660][ C0] ? netlink_unicast+0x7b7/0x9b0 [ 70.957098][ C0] ? lock_release+0x69/0x640 [ 70.961253][ C0] slab_post_alloc_hook+0x3a/0x300 [ 70.965868][ C0] ? get_obj_cgroup_from_current+0x2c3/0x2f0 [ 70.971297][ C0] ? sock_alloc_inode+0x17/0xb0 [ 70.975413][ C0] kmem_cache_alloc+0x191/0x320 [ 70.979566][ C0] ? sockfs_init_fs_context+0xb0/0xb0 [ 70.984081][ C0] sock_alloc_inode+0x17/0xb0 [ 70.988065][ C0] ? sockfs_init_fs_context+0xb0/0xb0 [ 70.992692][ C0] new_inode_pseudo+0x63/0x220 [ 70.996786][ C0] __sock_create+0x129/0x900 [ 71.000571][ C0] ? wg_socket_init+0x4bb/0x930 [ 71.004581][ C0] udp_sock_create6+0x67/0x540 [ 71.008787][ C0] wg_socket_init+0x54c/0x930 [ 71.012982][ C0] ? wg_socket_init+0x930/0x930 [ 71.016962][ C0] wg_open+0x24b/0x420 [ 71.020219][ C0] __dev_open+0x252/0x400 [ 71.023743][ C0] __dev_change_flags+0x20a/0x6e0 [ 71.027965][ C0] dev_change_flags+0x82/0x1a0 [ 71.031858][ C0] do_setlink+0xae5/0x39b0 [ 71.035568][ C0] ? rtnl_newlink+0x75/0x1520 [ 71.039421][ C0] rtnl_newlink+0x1190/0x1520 [ 71.043576][ C0] ? rtnl_newlink+0x2a1/0x1520 [ 71.048034][ C0] ? rtnl_setlink+0x380/0x380 [ 71.052266][ C0] rtnetlink_rcv_msg+0x9a1/0xe10 [ 71.056547][ C0] ? rcu_lock_release+0x9/0x20 [ 71.060352][ C0] ? rcu_is_watching+0x11/0xb0 [ 71.064252][ C0] ? rcu_lock_release+0x9/0x20 [ 71.068156][ C0] ? __local_bh_enable_ip+0xe6/0x160 [ 71.072456][ C0] ? local_bh_enable+0x5/0x20 [ 71.076363][ C0] ? local_bh_enable+0x5/0x20 [ 71.080501][ C0] ? __local_bh_enable_ip+0xe6/0x160 [ 71.084747][ C0] ? __dev_queue_xmit+0x1848/0x2970 [ 71.089084][ C0] ? skb_clone+0x1f3/0x360 [ 71.092829][ C0] netlink_rcv_skb+0x185/0x390 [ 71.096677][ C0] ? rtnetlink_bind+0x80/0x80 [ 71.100540][ C0] netlink_unicast+0x7b7/0x9b0 [ 71.104452][ C0] netlink_sendmsg+0x968/0xb50 [ 71.108462][ C0] ? netlink_getsockopt+0x4f0/0x4f0 [ 71.112750][ C0] __sock_sendmsg+0x15e/0x170 [ 71.116588][ C0] __sys_sendto+0x323/0x430 [ 71.120208][ C0] __x64_sys_sendto+0xda/0xf0 [ 71.124032][ C0] do_syscall_64+0x32/0x50 [ 71.127891][ C0] entry_SYSCALL_64_after_hwframe+0x67/0xd1 [ 71.132877][ C0] RIP: 0033:0x7f23b2f027bc [ 71.136494][ C0] Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b [ 71.153164][ C0] RSP: 002b:00007ffc654628e0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 71.160787][ C0] RAX: ffffffffffffffda RBX: 00007f23b3c56620 RCX: 00007f23b2f027bc [ 71.167979][ C0] RDX: 0000000000000020 RSI: 00007f23b3c56670 RDI: 0000000000000003 [ 71.174413][ C0] RBP: 0000000000000000 R08: 00007ffc65462934 R09: 000000000000000c [ 71.181043][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 71.187635][ C0] R13: 0000000000000000 R14: 00007f23b3c56670 R15: 0000000000000000 [ 71.194293][ C0] ================================================================================ [ 71.202021][ C0] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 71.208019][ C0] CPU: 0 PID: 5695 Comm: syz-executor Not tainted syzkaller #0 [ 71.214266][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 71.223454][ C0] Call Trace: [ 71.226203][ C0] [ 71.228612][ C0] dump_stack+0xfd/0x16e [ 71.232139][ C0] panic+0x2f0/0x9c0 [ 71.235407][ C0] check_panic_on_warn+0x95/0xe0 [ 71.239403][ C0] handle_overflow+0x192/0x1b0 [ 71.243198][ C0] ip_idents_reserve+0x14a/0x170 [ 71.247319][ C0] __ip_select_ident+0xe4/0x1c0 [ 71.251220][ C0] iptunnel_xmit+0x468/0x850 [ 71.254960][ C0] udp_tunnel_xmit_skb+0x1ba/0x290 [ 71.259256][ C0] geneve_xmit+0x1d03/0x2130 [ 71.263053][ C0] dev_hard_start_xmit+0x2a8/0x7f0 [ 71.267280][ C0] __dev_queue_xmit+0x1690/0x2970 [ 71.271468][ C0] ip6_finish_output2+0x101e/0x1490 [ 71.275766][ C0] NF_HOOK+0x45/0x2c0 [ 71.278968][ C0] ? NF_HOOK+0x2c0/0x2c0 [ 71.282508][ C0] mld_sendpack+0x5f7/0xa60 [ 71.286156][ C0] mld_ifc_timer_expire+0x7e1/0x990 [ 71.290462][ C0] ? lock_acquire+0x78/0x330 [ 71.294191][ C0] ? lock_release+0x69/0x640 [ 71.298036][ C0] ? mld_gq_timer_expire+0xe0/0xe0 [ 71.302006][ C0] call_timer_fn+0x103/0x490 [ 71.305730][ C0] ? mld_gq_timer_expire+0xe0/0xe0 [ 71.309993][ C0] __run_timers+0x5d8/0x7a0 [ 71.313911][ C0] run_timer_softirq+0x63/0xf0 [ 71.318015][ C0] __do_softirq+0x267/0x92e [ 71.322055][ C0] ? asm_call_irq_on_stack+0xf/0x20 [ 71.326339][ C0] asm_call_irq_on_stack+0xf/0x20 [ 71.330564][ C0] [ 71.333015][ C0] do_softirq_own_stack+0x9b/0xe0 [ 71.337179][ C0] __irq_exit_rcu+0x227/0x230 [ 71.341102][ C0] irq_exit_rcu+0x5/0x20 [ 71.344621][ C0] sysvec_apic_timer_interrupt+0xea/0x100 [ 71.349764][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 71.354894][ C0] RIP: 0010:stack_trace_consume_entry+0x7/0x270 [ 71.360059][ C0] Code: 00 00 48 3b 4c 24 18 75 09 48 83 c4 20 e9 91 6c df 07 e8 1c 54 9d 07 66 66 2e 0f 1f 84 00 00 00 00 00 90 55 41 57 41 56 41 55 <41> 54 53 48 83 ec 18 48 ba 00 00 00 00 00 fc ff df 4c 8d 47 10 4c [ 71.376154][ C0] RSP: 0018:ffffc90008aaebf8 EFLAGS: 00000286 [ 71.381241][ C0] RAX: ffffffff8783c2d8 RBX: ffffc90008aaecb8 RCX: 0a3c4b9e92682801 [ 71.387858][ C0] RDX: ffffc90008aaec01 RSI: ffffffff8783c2d8 RDI: ffffc90008aaecb8 [ 71.394430][ C0] RBP: ffffc90008aaeca8 R08: dffffc0000000000 R09: ffffc90008aaec70 [ 71.401018][ C0] R10: fffff52001155d90 R11: ffffffff81611e60 R12: ffff88801e074380 [ 71.407617][ C0] R13: ffffed100845e940 R14: ffffffff81611e60 R15: ffffc90008aaec20 [ 71.414438][ C0] ? stack_trace_save+0x70/0x70 [ 71.418552][ C0] ? stack_trace_save+0x70/0x70 [ 71.422558][ C0] ? netlink_sendmsg+0x968/0xb50 [ 71.426642][ C0] ? netlink_sendmsg+0x968/0xb50 [ 71.430694][ C0] ? stack_trace_save+0x70/0x70 [ 71.434615][ C0] arch_stack_walk+0x108/0x150 [ 71.438527][ C0] ? netlink_sendmsg+0x968/0xb50 [ 71.442631][ C0] stack_trace_save+0x42/0x70 [ 71.446538][ C0] __kasan_kmalloc+0x106/0x140 [ 71.450364][ C0] ? __kasan_kmalloc+0x106/0x140 [ 71.454549][ C0] ? slab_post_alloc_hook+0x3a/0x300 [ 71.458983][ C0] ? kmem_cache_alloc+0x191/0x320 [ 71.463020][ C0] ? sock_alloc_inode+0x17/0xb0 [ 71.467007][ C0] ? new_inode_pseudo+0x63/0x220 [ 71.471116][ C0] ? __sock_create+0x129/0x900 [ 71.475108][ C0] ? udp_sock_create6+0x67/0x540 [ 71.479152][ C0] ? wg_socket_init+0x54c/0x930 [ 71.483309][ C0] ? wg_open+0x24b/0x420 [ 71.486904][ C0] ? __dev_open+0x252/0x400 [ 71.490620][ C0] ? __dev_change_flags+0x20a/0x6e0 [ 71.494962][ C0] ? dev_change_flags+0x82/0x1a0 [ 71.499149][ C0] ? do_setlink+0xae5/0x39b0 [ 71.502955][ C0] ? rtnl_newlink+0x1190/0x1520 [ 71.507503][ C0] ? rtnetlink_rcv_msg+0x9a1/0xe10 [ 71.511787][ C0] ? netlink_rcv_skb+0x185/0x390 [ 71.515716][ C0] ? netlink_unicast+0x7b7/0x9b0 [ 71.520611][ C0] ? lock_release+0x69/0x640 [ 71.525149][ C0] slab_post_alloc_hook+0x3a/0x300 [ 71.529525][ C0] ? get_obj_cgroup_from_current+0x2c3/0x2f0 [ 71.534522][ C0] ? sock_alloc_inode+0x17/0xb0 [ 71.538475][ C0] kmem_cache_alloc+0x191/0x320 [ 71.542291][ C0] ? sockfs_init_fs_context+0xb0/0xb0 [ 71.546753][ C0] sock_alloc_inode+0x17/0xb0 [ 71.550639][ C0] ? sockfs_init_fs_context+0xb0/0xb0 [ 71.555015][ C0] new_inode_pseudo+0x63/0x220 [ 71.558724][ C0] __sock_create+0x129/0x900 [ 71.562532][ C0] ? wg_socket_init+0x4bb/0x930 [ 71.566440][ C0] udp_sock_create6+0x67/0x540 [ 71.571248][ C0] wg_socket_init+0x54c/0x930 [ 71.575826][ C0] ? wg_socket_init+0x930/0x930 [ 71.579730][ C0] wg_open+0x24b/0x420 [ 71.583114][ C0] __dev_open+0x252/0x400 [ 71.586652][ C0] __dev_change_flags+0x20a/0x6e0 [ 71.590743][ C0] dev_change_flags+0x82/0x1a0 [ 71.594640][ C0] do_setlink+0xae5/0x39b0 [ 71.598275][ C0] ? rtnl_newlink+0x75/0x1520 [ 71.601891][ C0] rtnl_newlink+0x1190/0x1520 [ 71.605709][ C0] ? rtnl_newlink+0x2a1/0x1520 [ 71.609651][ C0] ? rtnl_setlink+0x380/0x380 [ 71.613270][ C0] rtnetlink_rcv_msg+0x9a1/0xe10 [ 71.617249][ C0] ? rcu_lock_release+0x9/0x20 [ 71.621186][ C0] ? rcu_is_watching+0x11/0xb0 [ 71.625149][ C0] ? rcu_lock_release+0x9/0x20 [ 71.629135][ C0] ? __local_bh_enable_ip+0xe6/0x160 [ 71.633276][ C0] ? local_bh_enable+0x5/0x20 [ 71.637099][ C0] ? local_bh_enable+0x5/0x20 [ 71.640740][ C0] ? __local_bh_enable_ip+0xe6/0x160 [ 71.644941][ C0] ? __dev_queue_xmit+0x1848/0x2970 [ 71.649034][ C0] ? skb_clone+0x1f3/0x360 [ 71.652609][ C0] netlink_rcv_skb+0x185/0x390 [ 71.656760][ C0] ? rtnetlink_bind+0x80/0x80 [ 71.660615][ C0] netlink_unicast+0x7b7/0x9b0 [ 71.664322][ C0] netlink_sendmsg+0x968/0xb50 [ 71.668182][ C0] ? netlink_getsockopt+0x4f0/0x4f0 [ 71.672318][ C0] __sock_sendmsg+0x15e/0x170 [ 71.676187][ C0] __sys_sendto+0x323/0x430 [ 71.680048][ C0] __x64_sys_sendto+0xda/0xf0 [ 71.683928][ C0] do_syscall_64+0x32/0x50 [ 71.687634][ C0] entry_SYSCALL_64_after_hwframe+0x67/0xd1 [ 71.692636][ C0] RIP: 0033:0x7f23b2f027bc [ 71.696317][ C0] Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b [ 71.712052][ C0] RSP: 002b:00007ffc654628e0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 71.719689][ C0] RAX: ffffffffffffffda RBX: 00007f23b3c56620 RCX: 00007f23b2f027bc [ 71.727574][ C0] RDX: 0000000000000020 RSI: 00007f23b3c56670 RDI: 0000000000000003 [ 71.734042][ C0] RBP: 0000000000000000 R08: 00007ffc65462934 R09: 000000000000000c [ 71.740589][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 71.746882][ C0] R13: 0000000000000000 R14: 00007f23b3c56670 R15: 0000000000000000 [ 71.753763][ C0] Kernel Offset: disabled [ 71.757459][ C0] Rebooting in 86400 seconds.. VM DIAGNOSIS: 07:49:05 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000030 RBX=0000000000000030 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=00000000000003f8 RSP=ffffc90000007200 R8 =dffffc0000000000 R9 =fffff52000000e42 R10=fffff52000000e42 R11=ffffffff83f79850 R12=dffffc0000000000 R13=1ffffffff2acda63 R14=ffffffff96156de0 R15=0000000000000000 RIP=ffffffff83f798c8 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 00005555604e7500 ffffffff 00c00000 GS =0000 ffff888020600000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007ffed664f118 CR3=000000003ec9e000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000040410888 Opmask01=0000000000000fff Opmask02=00000000ffffffef Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000100000001 0000001900000000 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f23b2f83ae7 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f23b2f83adf ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f23b2f83b12 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f23b2f83b1f ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f23b2f83b19 ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f23b2f83b2d ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f23b2f83bb3 ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f23b2f83c91 ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00306e6170737265 0030657267367069 00306c6e74367069 00306974765f3670 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6900306974765f70 6900306c6e757400 3074697300326777 0031677700306777 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1145845823=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at 6b6b5f21aad nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=6b6b5f21aadcc3fc3ccd91da0b782a4307229d70 -X github.com/google/syzkaller/prog.gitRevisionDate=20250604-135810" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"6b6b5f21aadcc3fc3ccd91da0b782a4307229d70\" /usr/bin/ld: /tmp/ccDhSuvv.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking